Sensor-based lighting system with integrated wireless repeater

ABSTRACT

A lighting fixture that provides an illumination light includes a wireless signal repeater configured to receive an input wireless signal and to transmit an output wireless signal that corresponds to the input wireless signal. The lighting fixture further includes an occupancy sensor configured to monitor a space and to output occupancy detection information indicating whether the space is occupied. The wireless signal repeater is configured to operate based on the occupancy detection information.

CROSS REFERENCE TO RELATED APPLICATIONS

This patent application is a Continuation of U.S. patent applicationSer. No. 16/362,385, filed on Mar. 22, 2019, which claims priority toU.S. Provisional Patent Application No. 62/648,654, filed Mar. 27, 2018and titled “Sensor-Based Lighting System With Integrated Wireless SignalRepeater,” the entire contents of each are incorporated herein byreference.

TECHNICAL FIELD

The present disclosure relates generally to wireless signal repeatersthat are integrated in lighting systems, in particular to wirelessrepeaters that are integrated in lighting systems and that operate basedon detection by occupancy sensors.

BACKGROUND

In wireless networks such as Wi-Fi networks, wireless signals fromnetwork routers can often be less than optimal for some users. Toillustrate, the typical omni-directional coverage provided by wirelessrouters (e.g., Wi-Fi network routers) may not be well suited for typicalcommercial and residential spaces that generally do not have a roundshape. Because wireless routers are often placed close to power outletsand entry points of networks, the wireless signal coverage provided bysuch wireless routers is often inadequate, for example, for locations incommercial and residential buildings that are far from the routers orthat are separated by a building structure that blocks or weakenswireless signals. For example, a wireless router is often located closeto a network modem wall outlet that is at one end of a house/building,and the wireless signals transmitted by the wireless router often lackadequate strength for use in rooms that are far from the location of therouter. Typical wireless signal repeaters that are added to expandwireless network coverage may be unsatisfactory for a number of reasons.For example, because different parts of a building or a house may sufferfrom inadequate wireless network coverage, typical repeaters oftentransmit wireless signals at high power to expand the network coverageto a general large area. Such expansions of network coverage can resultin the wireless signals from the repeaters reaching areas outside of thebuilding or the house, and thus, expose the network to security risks.Further, the continuous expansion of network coverage regardless of thepresence of users some parts of the coverage areas can also expose thenetwork to security risks. Thus, a solution that enables the expansionof wireless network coverage while minimizing security risks isdesirable.

SUMMARY

The present disclosure relates generally to wireless signal repeatersthat are integrated in lighting systems, in particular to wirelessrepeaters that are integrated in lighting systems and that operate basedon detection by occupancy sensors. In some example embodiments, alighting fixture that provides an illumination light includes a wirelesssignal repeater configured to receive an input wireless signal and totransmit an output wireless signal that corresponds to the inputwireless signal. The lighting fixture further includes an occupancysensor configured to monitor a space and to output occupancy detectioninformation indicating whether the space is occupied. The wirelesssignal repeater is configured to operate based on the occupancydetection information.

In another example embodiment, a lighting fixture includes a lightsource that provides an illumination light. The lighting fixture furtherincludes a wireless signal repeater configured to receive an inputwireless signal and to transmit an output wireless signal thatcorresponds to the input wireless signal. The light source and thewireless signal repeater are configured to operate based on occupancydetection information from an occupancy sensor that is external to thelighting fixture. The occupancy detection information indicates whethera space monitored by the occupancy sensor is occupied.

In another example embodiment, a method of expanding a coverage of awireless network includes receiving, by a wireless signal repeater of alighting fixture, an input wireless signal, and transmitting, by thewireless signal repeater, an output wireless signal at a first powerlevel if occupancy detection information from an occupancy sensorindicates that a space monitored by the occupancy sensor is occupied.The output wireless signal corresponds to the input power signal. Themethod further includes transmitting the output wireless signal at asecond power level that is less than the first power level if theoccupancy detection information from the occupancy sensor indicates thatthe space is unoccupied.

These and other aspects, objects, features, and embodiments will beapparent from the following description and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Reference will now be made to the accompanying figures, which are notnecessarily to scale, and wherein:

FIG. 1 illustrates a lighting fixture with an integrated occupancysensor and a wireless signal repeater according to an exampleembodiment;

FIG. 2 illustrates a block diagram of the wireless signal repeater ofFIG. 1 according to an example embodiment;

FIG. 3 illustrates a sensor-based lighting and repeater system accordingto an example embodiment;

FIG. 4 illustrates a sensor-based lighting and repeater system accordingto an example embodiment; and

FIG. 5 illustrates a sensor-based lighting and repeater system accordingto another example embodiment.

The drawings illustrate only example embodiments and are therefore notto be considered limiting in scope. The elements and features shown inthe drawings are not necessarily to scale, emphasis instead being placedupon clearly illustrating the principles of the example embodiments.Additionally, certain dimensions or placements may be exaggerated tohelp visually convey such principles. In the drawings, the samereference numerals that are used in different figures designate like orcorresponding but not necessarily identical elements.

DETAILED DESCRIPTION OF THE EXAMPLE EMBODIMENTS

In the following paragraphs, example embodiments will be described infurther detail by way of example with reference to the figures. In thedescription, well known components, methods, and/or processingtechniques are omitted or briefly described. Furthermore, reference tovarious feature(s) of the example embodiments is not to suggest that allembodiments must include the referenced feature(s).

In some example embodiments, wireless network coverage, such as Wi-Finetwork coverage, may be optimized by dynamically controlling signalrepeating operations of a wireless signal repeater depending on whethera space is occupied, and in some cases based on the level of occupancy.For example, if no occupants are detected in a given space, signalrepeating operations by the wireless signal repeater may be turned offby turning off power to the wireless signal repeater or by adjusting thesignal power levels of transmitted signal. By limiting the transmissionof wireless network signals at normal power levels to times when a spaceis occupied by one or more occupants, unnecessary bandwidth allocationsas well as exposures to network security risks may be reduced.

Turning now to the figures, example embodiments are described. FIG. 1illustrates a lighting fixture 100 with integrated occupancy sensor 102and wireless signal repeater 104 according to an example embodiment. Thelighting fixture 100 may be a recessed luminaire, a suspended luminaire,or another type of luminaire. In some example embodiments, the lightingfixture 100 includes a light source 106 (e.g., an LED light source), thesensor 102, and the wireless signal repeater 104. The lighting fixture100 may also include a power supply 108.

In some example embodiments, the lighting fixture 100 may be located ina space such that the occupancy sensor 102 can determine whether thespace is occupied. The occupancy sensor 102 may output occupancydetection information indicating whether the space is occupied. Forexample, the occupancy detection information may indicate that the spacemonitored by the occupancy sensor 102 is occupied. Alternatively or inaddition, the occupancy detection information may indicate that thespace monitored by the occupancy sensor 102 is unoccupied. The occupancydetection information may also indicate the number of occupants in thespace. To illustrate, the occupancy sensor 102 may include a processor(e.g., a microcontroller), a controller (e.g., a microcontroller), oranother circuit that may process sensing information (e.g., signals,images, sound, etc.) received or captured by the occupancy sensor 102and output the occupancy detection information. For example, theoccupancy sensor 102 may execute software code stored in a memory deviceto process the sensing information to determine whether the space isoccupied. Alternatively, another component or circuit of the lightingfixture 100 may receive sensing information from the occupancy sensor102 and generate the occupancy detection information. The occupancydetection information may be provided to the wireless signal repeater104, to the power supply 108, and/or to other components of the lightingfixture 100.

In some example embodiments, the occupancy sensor 102 may include one ormore of a passive infrared (PIR) sensor, Bluetooth Low Energy (BLE)sensor, an ultrasonic sensor, a camera sensor, etc. that can detectwhether a space (e.g., a room) is occupied. For example, a motion may beconsidered an indication of one or occupants, and the occupancy sensor102 may include a motion sensor that may sense a motion within thesensing area of the occupancy sensor 102. The occupancy sensor 102 maybe capable of sensing motions within a space, such as a typical livingroom, bedroom, office, outdoor space (e.g., a patio), etc.

In some example embodiments, the occupancy sensor 102 may detectBluetooth and/or other wireless signals instead of or in addition to atypical motion sensor. For example, Bluetooth and/or other wirelesssignals may be considered an indication of one or occupants. Toillustrate, the occupancy sensor 102 may include a wireless(radiofrequency) signal receiver, and the sensor 102 may determinewhether a space is occupied based on whether a Bluetooth signal and/oranother wireless signal is received by the wireless signal receiver ator above a particular power level. For example, the occupancy sensor 102may determine whether a space is occupied based on whether the occupancysensor 102 detects one or more BLE signals from one or more mobiledevices (e.g., mobile phones). The occupancy sensor 102 may alsodetermine or estimate the number of occupants of the space based on BLEsignals received from different sources and provide the occupancydetection information including the number of occupants, for example, tothe wireless signal repeater 104.

In some example embodiments, instead of or in addition to detectingmotion and/or BLE signals, the occupancy sensor 102 may detect sounds todetermine whether a space is occupied. To illustrate, the occupancysensor 102 may include one or more microphones and may process the audiosignals from the one or more microphones to determine whether a soundreceived by the microphone corresponds to a human voice. The occupancysensor 102 may detect different sounds including human voices, etc. andmay determine whether the space is occupied by one or more people basedon sound levels, patterns, frequency, etc. of the sounds. The occupancysensor 102 may also determine or estimate the number of occupants in thespace based on the sounds picked up by the one or more microphones andprovide the occupancy detection information including the number ofoccupants, for example, to the wireless signal repeater 104.

In some example embodiments, the occupancy sensor 102 may include acamera that captures images of a space instead of or in addition toother occupant detection means. The occupancy sensor 102 may processimages captured by the camera to determine whether one or more personsare present in the space. For example, the occupancy sensor 102 mayexecute an image processing software to identify person(s) in one ormore still or video images captured by the camera. To illustrate, theoccupancy sensor 102 may perform image analysis to identify person(s)based on facial features. The occupancy sensor 102 may also determine orestimate the number of occupants in the space based on the one or moreimages and provide the occupancy detection information including thenumber of occupants, for example, to the wireless signal repeater 104.

In some example embodiments, the wireless signal repeater 104 mayincrease a wireless network coverage by receiving input wireless(radiofrequency) signals and transmitting output wireless(radiofrequency) signals at higher power levels than the power levels ofthe input wireless signals received by the wireless signal repeater 104.The output wireless signals transmitted by the wireless signal repeater104 correspond to the received wireless signals as can be readilyunderstood by those of ordinary skill in the art with the benefit ofthis disclosure. To illustrate, the output wireless signals may beamplified versions of the input wireless signals. For example, thewireless signal repeater 104 may be a Wi-Fi network repeater.

In some example embodiments, the wireless signal repeater 104 mayreceive wireless signals from a network device (e.g., a wireless routerdevice or an access point device) and transmit output wireless signalscorresponding to the received wireless signals at higher power levels.For example, the wireless signal repeater 104 may receive the inputwireless signals from a wireless router and transmit the output wirelesssignals to user devices, such as desktops, laptops, tables, mobilephones, etc. The wireless signal repeater 104 may also receive wirelesssignals from user devices and transmit corresponding wireless signals tothe network device, for example, at a higher power level. In someexample embodiments, the wireless signal repeater 104 may transmit andreceive wireless signals that are compliant with one or more wirelessstandards such as one or more Wi-Fi standards (e.g., IEEE802.11b/g/n/ac).

In some example embodiments, the power supply 108 may receive inputpower (e.g., AC or DC power) and may provide output power (e.g., DCpower) to the sensor 102, the wireless signal repeater 104, and thelight source 108. For example, the power supply 108 may be amultichannel power supply that provides power to the sensor 102, to thewireless signal repeater 104, and to the light source 108 via separatepower outputs that are coupled to the sensor 102, to the wireless signalrepeater 104, and to the light source 108. The power supply 108 mayprovide power to the sensor 102, the wireless signal repeater 104, andthe light source 108 at different voltage levels. For example, the powersupply 108 may include an LED driver that provides power to the lightsource 106 (e.g., an LED light source) at a voltage level compatiblewith the light source 106 and that is different from the voltagelevel(s) provided to the sensor 102 and the repeater 104 by the powersupply 108. Alternatively, the power supply 108 may have a single poweroutput that is coupled to the light source 106 as well as the sensor 102and the wireless signal repeater 104. For example, one or more of thesensor 102, the wireless signal repeater 104, and the light source 106may include circuitry (e.g., a voltage regulator) to generate power atdesired power levels from the power received from the power supply 108.In yet other alternative embodiments, external circuits may receivepower from the power supply 108 and generate output power at voltagelevels compatible with the sensor 102 and the wireless signal repeater104.

In some example embodiments, the power supply 108 may receive occupancydetection information from the occupancy sensor 102 via an electricalconnection 110 (e.g., one or more electrical wires). The power supply108 may control the power provided by the power supply 108 to thewireless signal repeater 104 and/or the light source 106 based on theoccupancy detection information. For example, the power supply 108 mayturn off power provided to one or both of the wireless signal repeater104 and the light source 106 in response to the occupancy detectioninformation indicating that no occupants are detected in the spacemonitored by the occupancy sensor 102. The power supply 108 may turn offthe power immediately upon receiving the indication that the space isunoccupied. Alternatively, the power supply 108 may turn off the powerafter a wait time (e.g., 5 minutes) following an indication by theoccupancy detection information that no occupants are detected. Thewireless signal repeater 104 may be powered off and/or may stoptransmitting wireless signals to user devices when the power provided tothe wireless signal repeater 104 by the power supply 108 is turned off.The light source 106 may also stop emitting a light when the powerprovided to the light source 106 by the power supply 108 is turned off.

In some alternative embodiments, instead of turning off the powerprovided to the wireless signal repeater 104 and/or the light source106, the power supply 108 may reduce the power in response to theoccupancy detection information from the occupancy sensor 102 indicatingthat no occupants are detected in the space monitored by the sensor 102.The power supply 108 may reduce the power immediately upon theindication by the occupancy detection information that no occupants aredetected. Alternatively, the power supply 108 may reduce the power aftera wait time following the indication by the occupancy detectioninformation that no occupants are detected. In response to the reducedpower from power supply 108, the wireless signal repeater 104 may reducethe power level of wireless signals transmitted by the wireless signalrepeater 104. Alternatively or in addition, the light provided by thelight source 106 may be dimmed as a result of the reduced power from thepower supply 108.

In some example embodiments, if the power provided by the power supply108 to one or both of the wireless signal repeater 104 and the lightsource 106 is off, the power supply 108 may turn the power on inresponse to the occupancy detection information indicating the detectionof one or more occupants in the space. If the power provided by thepower supply 108 was previously reduced, the power supply 108 mayincrease the power from the reduced level to a normal operation powerlevel in response to the occupancy detection information indicating thedetection of one or more occupants in the space.

In some example embodiments, the wireless signal repeater 104 mayoperate based on the occupancy detection information provided to thewireless signal repeater 104 from the occupancy sensor 102. For example,the wireless signal repeater 104 may receive the occupancy detectioninformation from the occupancy sensor 102 via an electrical connection112 (e.g., one or more electrical wires). To illustrate, the powersupply 108 may provide power to the wireless signal repeater 104regardless of whether the occupancy detection information indicates thatthe space monitored by the occupancy sensor 102 is occupied, and thewireless signal repeater 104 may operate based on the occupancydetection information.

In some example embodiments, the wireless signal repeater 104 mayreceive wireless signals from a network device (e.g., a wireless routerdevice, an access point device, etc.) and may transmit output wirelesssignals at normal power levels that are higher than the power levels ofthe received wireless signals. As describe above, the output wirelesssignals transmitted by the wireless signal repeater 104 correspond tothe received wireless signals. The wireless signal repeater 104 maytransmit the output wireless signals to user devices at normal operationpower levels in response to the occupancy detection information from theoccupancy sensor 102 indicating that one or more occupants are detectedin the space monitored by the occupancy sensor 102. For example, thewireless signal repeater 104 may increase the power levels of thewireless signals transmitted by the wireless signal repeater 104 fromrelatively low power levels to the normal operation power levels inresponse to the occupancy detection information indicating that thespace monitored by the occupancy sensor 102 is occupied. If the wirelesssignal repeater 104 was not transmitting the wireless signals before theoccupancy detection information indicates the detection/presence ofoccupants, the wireless signal repeater 104 may start transmitting thewireless signals at the normal operation power levels in response to theoccupancy detection information indicating that the space is occupied.

In some example embodiments, in response to the occupancy detectioninformation indicating that no occupants are detected by the occupancysensor 102, the wireless signal repeater 104 may transmit wirelesssignals to user devices at relatively low power levels. To illustrate,the wireless signal repeater 104 may transmit wireless signals to userdevices at low power levels such that no user devices can successfullyreceive the transmitted wireless signals. Alternatively, the wirelesssignal repeater 104 may transmit the wireless signals to user devices atlow power levels such that only user devices that are near (e.g., within5 feet, 10 feet, etc.) the wireless signal repeater 104 can successfullyreceive the transmitted wireless signals. The amplification gain of oneor more output amplifiers of the wireless signal repeater 104 may becontrolled to reduce the power levels of the wireless signalstransmitted by the wireless signal repeater 104. The wireless signalrepeater 104 may transmit wireless signals at low power levelsimmediately or after waiting a wait time following the indication by thesensor 102 that the space monitored by the occupancy sensor 102 isunoccupied.

In some example embodiments, instead of transmitting the wirelesssignals at lower power levels, the wireless signal repeater 104 maydisable the transmission of the wireless signals to user devices inresponse to the occupancy detection information provided to the wirelesssignal repeater 104 indicating that the space monitored by the sensor102 is unoccupied (i.e., no occupants are detected by the occupancysensor 102). For example, the wireless signal repeater 104 may disableits transmission of wireless signals immediately or following a waittime after the occupancy detection information indicates that the spaceis unoccupied. The wireless signal repeater 104 may subsequently starttransmitting the wireless signals to user devices in response to theoccupancy detection information from the sensor 102 indicating that thespace monitored by the sensor 102 is occupied.

In some example embodiments, the wireless signal repeater 104 can scanwireless signal channels to identify channels that are free or lesscrowded. For example, upon the occupancy detection information from thesensor 102 indicating that the monitored space is occupied, the wirelesssignal repeater 104 may scan wireless signal channels (e.g., Wi-Fichannels) to identify free or less crowded channels and may use one ormore of the free or less crowded channels to transmit the wirelesssignals to user devices, such as laptops, tables, mobile phones, etc.

In some example embodiments, in response to the occupancy detectioninformation indicating that multiple occupants are present in themonitored space, the wireless signal repeater 104 may transmit wirelesssignals to different user devices using different channels. In responseto the occupancy detection information indicating the number ofoccupants in the monitored space, the wireless signal repeater 104 maytransmit wireless signals to different user devices using differentchannels. The presence of multiple occupants or the number of occupantsmay be determined or estimated by the occupancy sensor 102 in a numberof ways including by using multiple sensor elements of the occupancysensor 102 that provide sensor information, by identifying BLE signalsfrom different sources, image analysis, audio analysis, and/or othermeans as can be contemplated by those of ordinary skill in the art withthe benefit of this disclosure.

In some example embodiments, one or more user profiles may be stored inthe lighting fixture 100. For example, a user profile may include a BLEsignature that can be compared against a BLE signature in BLE signalsreceived by the occupancy sensor 102 and/or by the wireless signalrepeater 104 of the lighting fixture 100. The BLE signature may include,for example, a device ID of a user device associated with a particularperson. To illustrate, the occupancy sensor 102 may indicate that anoccupant is detected based on a BLE signal only if the BLE signature inthe received BLE signal matches a BLE signature in user profiles storedin the lighting fixture 100 (e.g., a memory device of the lightingfixture 100). Alternatively, the occupancy sensor 102 may not indicatethat an occupant is detected if the BLE signature in the received BLEsignal matches a BLE signature in user profiles stored in the lightingfixture 100 (e.g., a memory device of the lighting fixture 100).

In some alternative embodiments, the occupancy sensor 102 may detectoccupancy based on motion, BLE signals, sound, image analysis, etc.independent of BLE signature. For example, the wireless signal repeater104 may determine whether to extend the wireless network based onwhether the BLE signature in BLE signals received by the occupancysensor 102 or another receive of the lighting fixture 100 matches a BLEsignature in user profiles stored in the lighting fixture 100.

In some example embodiments, the user profile may include facialfeatures and/or other identifying information associated with one ormore users. For example, one or more images captured by the occupancysensor 102 may be analyzed by the occupancy sensor 102 or anothercomponent of the lighting fixture 100 to determine whether a person inthe images is associated with a user profile. The occupancy sensor 102may indicate that an occupant is detected if the person in the images isassociated with the user profile. Alternatively, the occupancy sensor102 may not indicate that an occupant is detected if the person in theimages is associated with the user profile.

In some example embodiments, the wireless signal repeater 104 may extendthe wireless network coverage such that only user devices associateduser profiles stored in the lighting fixture 100 can use the extendednetwork. For example, the user profiles may include information thatinclude network or another identification, and the wireless signalrepeater 104 transmit output wireless signals related to the particularidentification information. Alternatively, the wireless signal repeater104 may extend the wireless network coverage to all user devices if oneuser device that is associated with a stored user profile is detected.

In some example embodiments, some user profiles stored in the lightingfixture 100 may include bandwidth information (e.g., data rate, etc.).For example, different users may be allocated different bandwidths inthe user profiles. To illustrate, the wireless signal repeater 104 maytransmit wireless signals related to some user devices at a higher datarate than other devices based on data rate allocation and/or data ratepriority information in the stored user profiles.

In some example embodiments, the wireless signal repeater 104 may beconfigured to extend the wireless network coverage by transmittingoutput wireless signals at normal power levels (i.e., higher than powerlevels of input wireless signals) during particular time periods. Toillustrate, the wireless signal repeater 104 may not extend the wirelessnetwork coverage outside of certain time periods (e.g., 8 a.m. to 5p.m.) even if occupants are detected by the occupancy sensor 102. Forexample, the wireless signal repeater 104 may be configured to extendthe wireless network coverage during particular time periods regardlessof whether one or more occupants are detected. Alternatively, thewireless signal repeater 104 may be configured to extend the wirelessnetwork coverage during particular time periods only if one or moreoccupants are detected. In some alternative embodiments, the wirelesssignal repeater 104 may be configured to not extend the wireless networkcoverage during particular time periods even if occupants are detected.

By disabling the transmission of wireless signals to user devices and/orby transmitting wireless signals to user devices at low power when amonitored space is unoccupied, signal interference may be reduced andthe availability of bandwidth may be increased for other user devices ofa wireless network. When the wireless signal repeater 104 is used forexpanding a wireless network coverage to a limited space, such as aliving room, a bedroom, an office space, etc., the wireless signalrepeater 104 can transmit signals to user devices at relatively lowernormal operation power than typical wireless signal repeaters that areintended to expand network coverage to large areas such as multiplerooms or a large room.

In some alternative embodiments, the lighting fixture 100 may includemore than one occupancy sensor 102 and/or more than one wireless signalrepeater 104 without departing from the scope of this disclosure. Insome example embodiments, the lighting fixture 100 may includecomponents other than shown without departing from the scope of thisdisclosure. In some example embodiments, one or more the components ofthe lighting fixture 100 may be integrated into a single component. Forexample, the sensor 102 and the repeater 104 may be integrated into asingle component. In some example embodiments, the lighting fixture 100may include more than one power supply that may provide power todifferent components of the lighting fixture 100.

FIG. 2 illustrates a block diagram of the wireless signal repeater 104of FIG. 1 according to an example embodiment. Referring to FIGS. 1 and 2, in some example embodiments, the wireless signal repeater 104 mayinclude a receiver circuit 202, a processing circuit 204, and atransmitter circuit 206. The wireless signal repeater 104 may alsoinclude a controller circuit 208 and an optional transceiver 210. Theprocessing circuit 204 and controller circuit 208 may each include amicroprocessor and/or a microcontroller, a memory device, etc. and mayexecute a software code to implement some of the operations describedherein.

In some example embodiments, the receiver circuit 202 may include one ormore wireless signal receivers that receive wireless signals from anetwork device, such as a router, an access point, etc. The receivercircuit 202 may also include one or more wireless signal receivers thatreceive wireless signals from user devices, such as desktops, laptops,tablets, mobile phones, etc. The receiver circuit 202 may include one ormore antennas and other components that enable successful reception ofwireless signals by the wireless signal repeater 104. After receivingthe wireless signals, the receiver circuit 202 may provide the receivedsignals to the processing circuit 204.

In some example embodiments, the processing circuit 204 may process(e.g., filter, change frequencies, etc.) the received signals providedfrom the receiver circuit 202 and provide output signals to thetransmitter circuit 206. The transmitter circuit 206 may include one ormore transmitters that transmit wireless signals to user devices and toa network device, where the transmitted wireless signals correspond tothe wireless signals received by the receiver circuit 202 as can bereadily understood by those of ordinary skill in the art with thebenefit of this disclosure.

In some example embodiments, the controller circuit 208 may controloperations of the receiver circuit 202 and/or the transmitter circuit206. To illustrate, the controller circuit 208 may control thetransmitter circuit 206 such that the transmitter circuit 206 transmitswireless signals at low power levels in response to the occupancydetection information indicating that no occupants are detected. Forexample, the controller device 208 may control the gain of one or moreoutput amplifiers of the transmitter circuit 208 based on the occupancydetection information to control the power levels of the wirelesssignals transmitted by the transmitter circuit 208. The controllercircuit 208 may also control the transmitter circuit 206 such that thetransmitter circuit 206 transmits wireless signals at normal operatingpower levels in response to the occupancy detection informationindicating that occupants are detected.

In some example embodiments, the controller circuit 208 may control thetransmitter circuit 206 based on the occupancy detection information toturn on and off transmissions of wireless signals. For example, thecontroller circuit 208 may control the gain of one or more outputamplifiers of the transmitter circuit 208 to turn on and offtransmissions of wireless signals. As another example, the controllercircuit 208 may control the power provided to the transmitter circuit208 or to a portion of the transmitter circuit 208 to turn on and offtransmissions of wireless signals.

In some example embodiments, the occupancy detection information may beprovided to the controller circuit 208 via the sensor signal input ofthe wireless signal repeater 104. For example, the sensor signal inputmay be electrically coupled to the occupancy sensor 102. Alternativelyor in addition, the controller circuit 208 may receive the occupancydetection information from the transceiver 210, for example, inembodiments of the wireless signal repeater 104 that include thetransceiver 210. For example, the transceiver 210 may wirelessly receivethe occupancy detection information from an occupancy sensor that isexternal to the lighting fixture 100.

In some example embodiments, the controller circuit 208 may scan forfree and/or less crowded network channels by processing signals receivedvia the receiver circuit 202 and/or via the transceiver 210. Forexample, upon the occupancy detection information from the sensor 102indicating that a monitored space is occupied, the controller circuit208 may process signals received via the receiver circuit 202 and/or viathe transceiver 210 to identify free and/or less crowded networkchannels (e.g., Wi-Fi network channels). Upon identifying free and/orless crowded channels, the controller circuit 208 may control thetransmitter circuit 206 to transmit wireless signals to user devices inthe identified free and/or less crowded channels.

In some alternative embodiments, the wireless signal repeater 104 mayinclude more or fewer components than shown in FIG. 2 without departingfrom the scope of this disclosure. In some alternative embodiments, somecomponents of the wireless signal repeater 104 may be integrated into asingle component without departing from the scope of this disclosure.For example, the receiver circuit 202 and the transmitter circuit 206may be integrated into a transceiver. In some alternative embodiments,the wireless signal repeater 104 may be implemented using differentcomponents than shown in FIG. 2 without departing from the scope of thisdisclosure.

FIG. 3 illustrates a sensor-based lighting and repeater system 300according to an example embodiment. Referring to FIGS. 1-3 , in someexample embodiments, the system 300 is installed in a building 304 thatincludes a network device 302 (e.g., a wireless router or an accesspoint). For example, the building 304 may include multiple roomsincluding rooms 306,308,310, and 312 that contain a respective lightingfixture 314,316,318, and 320. For example, the lighting fixture 314-320may each correspond to the lighting fixture 100 of FIG. 1 and thus, mayinclude the wireless signal repeater 104.

In some example embodiments, each lighting fixture 314-320 may extendthe network coverage of wireless signals transmitted by the networkdevice 302. For example, the network device 302 may be located in adifferent room from the lighting fixtures 314-320, and the wirelesssignals transmitted by the network device 302 may be too weak to provideadequate network coverage to all areas of some of the room 306-312. Toillustrate, the wireless signals transmitted by the network device 302may provide the strongest network coverage within the area bound by thedotted line 328, a medium network coverage within the area betweendotted lines 328 and 330, and a weak network coverage within the areabetween dotted line 330 and the solid line 332.

In some example embodiments, the wireless signal repeater 104 of eachlighting fixture 314-320 may transmit wireless signals to user devicesat relatively low power levels when the respective room is unoccupied.For example, when the occupancy detection information from the occupancysensor 102 of the lighting fixture 314 indicates that the room 306 isunoccupied, the wireless signal repeater 104 of the lighting fixture 314may transmit wireless signals at a relatively low power level. Toillustrate, the network coverage provided by the low power wirelesssignals transmitted by the wireless signal repeater 104 of the lightingfixture 314 may be generally confined to the dotted circle 322 when theroom 306 is unoccupied.

In some example embodiments, the wireless signal repeater 104 of eachlighting fixture 314-320 may transmit wireless signals to user devicesat normal operation power levels when the respective room is occupied asindicated by the occupancy detection information from the respectiveoccupancy sensor 102. For example, when the occupancy detectioninformation from the occupancy sensor 102 of the lighting fixture 314indicates that the room 306 is occupied, the wireless signal repeater104 of the lighting fixture 314 may transmit wireless signals at normaloperation power levels that allow user devices in the room 306 tocommunicate wirelessly with the network device 302 through the wirelesssignal repeater 104 of the lighting fixture 314. For example, thestrongest network coverage provided by the wireless signals transmittedby the wireless signal repeater 104 of the lighting fixture 314 may beconfined to the dotted circle 324, and the network coverage provided bythese wireless signals may be weak outside of the dotted circle 326.

In some example embodiments, the other lighting fixtures 316-320 operatein a similar manner as the lighting fixture 314 to expand the networkcoverage of the wireless signals transmitted by the network device 302based on whether the respective room/area is occupied. In some exampleembodiments, some of the lighting fixtures 314-320 may be nodes within awifeless mesh network. To illustrate, the lighting fixtures 314-320 mayreceive wireless signals from the network device 302, from another oneof the lighting fixtures lighting fixtures 314-320, and/or from a userdevice (e.g., a user device 334, such as a laptop, a mobile phone, etc.)and transmit output wireless signals at a higher power to another one ofthe lighting fixtures 314-320. For example, the lighting fixture 316 mayreceive input wireless signals from the lighting fixture 314 andtransmit, at a higher power, output wireless signals generated from theinput wireless signals if one or more occupants are detected by theoccupancy sensor 102 of the particular lighting fixture 316. The outputwireless signals transmitted by the lighting fixture 106 may be receivedby the lighting fixture 318, and the lighting fixture 108 may transmitrespective wireless output signals generated from the received signalsif one or more occupants are detected by the occupancy sensor 102 of theparticular lighting fixture 318.

In some example embodiments, one or more of the lighting fixtures314-320 may allocate a bandwidth to a particular user device (e.g., theuser device 334) based on a user profile stored in the respectivelighting fixture 314-320 in a similar manner as described with respectto FIG. 1 . In some example embodiments, one or more of the lightingfixtures 314-320 may also control network access through the respectivewireless signal repeater 104. For example, the respective wirelesssignal repeater 104 of the lighting fixtures 314-320 may be configuredto block access from and/or to some network addresses and/or internetaddresses. The wireless signal repeater 104 of one or more of thelighting fixtures 314-320 may also control routing within the network(e.g., from user device to another user device, a printer, etc.) basedon occupancy detection by the occupancy sensor 102 of the respective oneor more of the lighting fixtures 314-320. For example, the wirelesssignal repeater 104 of the lighting fixture 314 may router wirelesssignals between the user device 334 (e.g., a laptop) and a user device336 (e.g., a printer) if one or more occupants are detected in the room306. In general, the wireless signal repeater 104 of one or more of thelighting fixtures 314-320 may operate as a network router (e.g., a Wi-Firouter) that operates based on whether one or more occupants aredetected a respective monitored space.

Because the lighting fixtures 314-320 are distributed through thebuilding 304, the individual wireless signal repeaters of the lightingfixtures 314-320 can transmit wireless signals at high enough powerlevels to expand the network coverage to the respective areas. Bycontrolling the transmission of wireless signals based on whether therespective rooms/areas are occupied, the wireless signal repeaters ofthe lighting fixtures 314-320 can avoid wasting power while reducing therisk of interference and network overcrowding. Further, by expanding thenetwork coverage to relatively smaller areas, network security risks maybe reduced.

In some alternative embodiments, the system 300 may include more orfewer lighting fixtures than shown without departing from the scope ofthis disclosure. In some alternative embodiments, the components of thesystem 300 may be located in a different configuration than shownwithout departing from the scope of this disclosure. In some alternativeembodiments, the network coverage areas of the system 300 may bedifferent from those shown in FIG. 3 . In some alternative embodiments,the system 300 may be located in a different floor plan building thanshown without departing from the scope of this disclosure.

FIG. 4 illustrates a sensor-based lighting and repeater system 400according to an example embodiment. In some example embodiments, thesystem 400 may include a lighting fixture 402 and an occupancy sensor404. The lighting fixture 402 may include a wireless signal repeater406, a light source 408 (e.g., an LED light source), and a power supply410 that may provide power to the wireless signal repeater 406 and tothe light source 408 on the same or separate power outputs. For example,the power supply 410 may correspond to the power supply 108 of FIG. 1and may operate in a similar manner as described above. The light source408 may correspond to the light source 106 of FIG. 1 .

In some example embodiments, the occupancy sensor 404 may be astandalone occupancy sensor that corresponds to the occupancy sensor 102of FIG. 1 . Alternatively, the occupancy sensor 404 may correspond tothe occupancy sensor 102 and may be integrated in another device such asanother lighting fixture, a wall-mounted switch, a receptacle, anon-lighting device, etc. The occupancy sensor 404 may wirelesslytransmit occupancy detection information to the lighting fixture 402.Alternatively, the occupancy sensor 404 may be coupled to the lightingfixture 402 via a wired electrical connection and may transmit theoccupancy detection information to the lighting fixture 402 via thewired electrical connection. The occupancy detection information mayindicate that the space monitored by the occupancy sensor 404 isoccupied.

Alternatively or in addition, the occupancy detection information mayindicate that the space monitored by the occupancy sensor 404 isunoccupied. For example, the occupancy sensor 404 may transmit theoccupancy detection information to the lighting fixture 402 upon adetection of one or more occupants in the space monitored by theoccupancy sensor 404.

In some example embodiments, the lighting fixture 402 may also include acommunication circuit 412 that may include a wireless transceiver thatreceives occupancy detection information from the sensor 404 viawireless signals. The communication circuit 412 may provide the receivedoccupancy detection information to the wireless signal repeater 406and/or to the power supply 410. In some example embodiments, thecommunication circuit 412 may be used in lighting controlcommunications, such as to receive lighting control commands that areused to control the lighting provided by the light source 408.

In some example embodiments, the wireless signal repeater 406 maycorrespond to the wireless signal repeater 104 of FIGS. 1 and 2 and mayoperate in the same or similar manner as described above. To illustrate,the wireless signal repeater 406 may transmit wireless signals atrelatively low power levels or at normal operation power levelsdepending on whether the occupancy detection information received by thecommunication circuit 412 indicates the detection of one or moreoccupants. For example, the wireless signal repeater 406 may stoptransmitting wireless signals if the occupancy detection informationindicates that no occupants are detected in a similar manner asdescribed with respect to FIGS. 1-3 . In some example embodiments, thepower provided to at least a portion of the wireless signal repeater 406may be turned off by the power supply 410 or by the wireless signalrepeater 406 if the occupancy detection information indicates that nooccupants are detected, or the monitored space is unoccupied.

In some example embodiments, the system 400 may include more than oneoccupancy sensors that detect occupancy in non-overlapping or partiallyoverlapping detection spaces/areas. For example, the communicationcircuit 412 may receive occupancy detection information from multiplesensors and provide the respective occupancy detection information tothe wireless signal repeater 406. Alternatively or in addition, thesystem 400 may include multiple occupancy sensors that operate in asimilar manner as the occupancy sensor 404. To illustrate, differentoccupancy sensors may be positioned to detect occupancy innon-overlapping or partially overlapping detection spaces/areas and mayprovide respective occupancy detection information to the lightingfixture 402. The wireless signal repeater 406 may operate based on theoccupancy detection information from the multiple occupancy sensors in asimilar manner.

In some example embodiments, the sensor-based lighting and repeatersystem 400 maybe used in the system 300 of FIG. 3 . For example, thesystem 400 may be used in addition to or instead of one or more of thelighting fixtures of the system 300. In some alternative embodiments,the lighting fixture 402 may include other components. In somealternative embodiments, one or more components of the lighting fixture402 may be integrated into a single component. For example, thecommunication circuit 412 may be integrated in the wireless signalrepeater 406 or in the power supply 410. In some alternativeembodiments, the components of the lighting fixture 402 may be coupledin a different configuration than shown.

FIG. 5 illustrates a sensor-based lighting and repeater system 500according to another example embodiment. In some example embodiments,the system 500 may include a lighting fixture 502 and a wireless signalrepeater 504. The lighting fixture 502 may include an occupancy sensor506, a light source 508 (e.g., an LED light source), and a power supply510 that may provide power to the occupancy sensor 506 and to the lightsource 508 on the same or separate power outputs. For example, the powersupply 510 may correspond to the power supply 108, the light source 508may correspond to the light source 106, and the occupancy sensor 506 maycorrespond to the occupancy sensor 102 of FIG. 1 .

In some example embodiments, the wireless signal repeater 504 may be astandalone wireless signal repeater that corresponds to the wirelesssignal repeater 104 of FIGS. 1 and 2 . Alternatively, wireless signalrepeater 504 may be a wireless signal repeater that is integrated inanother device such as another lighting fixture, a wall-mounted switch,a receptacle, a non-lighting device, etc. The wireless signal repeater504 may wirelessly receive occupancy detection information from thelighting fixture 502. Alternatively, the wireless signal repeater 504may be coupled to the lighting fixture 502 via a wired electricalconnection and may receive the occupancy detection information from thelighting fixture 502 via the wired electrical connection. The occupancydetection information may indicate that the space monitored by theoccupancy sensor 506 is occupied. Alternatively or in addition, theoccupancy detection information may indicate that the space monitored bythe occupancy sensor 506 is unoccupied. For example, the occupancysensor 506 may transmit the occupancy detection information to thelighting fixture 502 upon a detection of one or more occupants in thespace monitored by the occupancy sensor 506.

In some example embodiments, the wireless signal repeater 504 maycontrol transmissions of wireless signals by the wireless signalrepeater 504 based on the occupancy detection information in a similarmanner as described above with respect to FIGS. 1-4 . To illustrate, thewireless signal repeater 504 may transmit wireless signals at relativelylow power levels or at normal operation power levels depending onwhether the occupancy detection information received from the lightingfixture 502 indicates the detection of one or more occupants. Forexample, the wireless signal repeater 504 may stop transmitting wirelesssignals to user devices if the occupancy detection information from thelighting fixture 502 does not indicate the detection of occupants orotherwise indicates that the space monitored by the occupancy sensor 506is unoccupied.

In some example embodiments, the lighting fixture 502 may include acommunication circuit 512 that may include a wireless transceiver thatwirelessly transmits occupancy detection information from the occupancysensor 506 to the wireless signal repeater 504. The occupancy sensor 506may also provide the occupancy detection information to the power supply510, and the power supply 510 may control the power provided to thelight source 508 based on the detection of occupants. In some exampleembodiments, the communication circuit 512 may be used in lightingcontrol communications, such as to receive lighting control commandsthat are used to control the lighting provided by the light source 508.

In some example embodiments, the sensor-based lighting and repeatersystem 500 maybe used in the system 300 of FIG. 3 . For example, thesystem 500 may be used in addition to or instead of one or more of thelighting fixtures of the system 300. In some example embodiments, thesystem 500 may include additional wireless signal repeater that operatebased on the occupancy detection information from the lighting fixture502. In some alternative embodiments, the lighting fixture 502 mayinclude other components. In some alternative embodiments, one or morecomponents of the lighting fixture 502 may be integrated into a singlecomponent. For example, the communication circuit 512 may be integratedin the occupancy sensor 506 or in the power supply 510. In somealternative embodiments, the components of the lighting fixture 502 maybe coupled in a different configuration than shown.

Although particular embodiments have been described herein in detail,the descriptions are by way of example. The features of the embodimentsdescribed herein are representative and, in alternative embodiments,certain features, elements, and/or steps may be added or omitted.Additionally, modifications to aspects of the embodiments describedherein may be made by those skilled in the art without departing fromthe spirit and scope of the following claims, the scope of which are tobe accorded the broadest interpretation so as to encompass modificationsand equivalent structures.

What is claimed is:
 1. A sensor based lighting and repeater system, thesystem comprising: an occupancy sensor configured to monitor a space andto output occupancy detection information indicating whether the spaceis occupied; and a lighting fixture, the lighting fixture comprising: awireless signal repeater configured to receive an input wireless signaland to transmit an output wireless signal that corresponds to the inputwireless signal; and a communication circuit configured to the occupancydetection information from the occupancy sensor and provide theoccupancy detection information to the wireless signal repeater; whereinthe wireless signal repeater is configured to modify a power level ofthe output wireless signal based on the occupancy detection information.2. The system of claim 1, wherein the communication circuit isconfigured to provide the occupancy detection information to a powersupply of the lighting fixture, wherein a power provided to the lightingfixture is modified based on the occupancy detection information.
 3. Thesystem of claim 1, wherein the lighting fixture comprises a lightsource, and wherein the communication circuit is configured to receivelighting control commands used to control lighting provided by the lightsource, and wherein a power to the light source is turned off based onthe lighting control commands and if the occupancy detection informationindicates that the space is unoccupied and wherein the power is turnedon based on the lighting control commands and if the occupancy detectioninformation indicates that the space is occupied.
 4. The system of claim1, wherein the wireless signal repeater is configured to transmit theoutput wireless signal at a first power level if the occupancy detectioninformation indicates that the space is occupied and wherein thewireless signal repeater is configured to transmit the output wirelesssignal at a second power level that is less than the first power levelif the occupancy detection information indicates that the space isunoccupied.
 5. The system of claim 1, wherein the wireless signalrepeater is configured to start transmitting the output wireless signalif the occupancy detection information indicates that the space isoccupied.
 6. The system of claim 1, wherein the wireless signal repeateris configured to stop transmitting the output wireless signal if theoccupancy detection information indicates that the space is unoccupied.7. The system of claim 1, wherein the wireless signal repeater isconfigured to transmit the output wireless signal if an occupantdetected by the occupancy sensor is associated with a user profilestored in the lighting fixture, wherein the wireless signal repeater isconfigured to transmit the output wireless signal at a bandwidthindicated in the user profile.
 8. The system of claim 1, wherein thewireless signal repeater is configured to scan for a free channel or aless crowded channel and wherein the wireless signal repeater isconfigured to use the free channel or the less crowded channel totransmit the output wireless signal.
 9. The system of claim 1, whereinthe wireless signal repeater is configured to transmit the outputwireless signal during one or more time periods and wherein the wirelesssignal repeater is configured to not transmit the output wireless signaloutside of the one or more time periods.
 10. The system of claim 1,wherein the wireless signal repeater is configured to transmit theoutput wireless signal and a second output wireless signal in differentnetwork channels from each other.
 11. A sensor based lighting andrepeater system, the system comprising: a lighting fixture, the lightingfixture comprising: a light source that provides an illumination light;and an occupancy sensor configured to monitor a space and to outputoccupancy detection information indicating whether the space isoccupied, wherein the light source is configured to operate based onoccupancy detection information from the occupancy sensor and whereinthe occupancy detection information indicates whether a space monitoredby the occupancy sensor is occupied; and a wireless signal repeaterconfigured to receive an input wireless signal and to transmit an outputwireless signal that corresponds to the input wireless signal, whereinthe wireless signal repeater is configured to modify a power level ofthe output wireless signal based on occupancy detection information fromthe occupancy sensor that is external to the lighting fixture.
 12. Thesystem of claim 11, wherein the wireless signal repeater is configuredto transmit the output wireless signal at a first power level if theoccupancy detection information indicates that the space is occupied andwherein the wireless signal repeater is configured to transmit theoutput wireless signal at a second power level that is less than thefirst power level if the occupancy detection information indicates thatthe space is unoccupied.
 13. The system of claim 11, wherein thewireless signal repeater is configured to start transmitting the outputwireless signal if the occupancy detection information indicates thatthe space is occupied.
 14. The system of claim 11, wherein the wirelesssignal repeater is configured to stop transmitting the output wirelesssignal if the occupancy detection information indicates that the spaceis unoccupied.
 15. The system of claim 14, wherein the wireless signalrepeater is configured to stop transmitting the output wireless signal await time after the occupancy detection information indicates that thespace is unoccupied.
 16. The system of claim 11, wherein the wirelesssignal repeater is configured to scan for a free channel or a lesscrowded channel and wherein the wireless signal repeater is configuredto use the free channel or the less crowded channel to transmit theoutput wireless signal.
 17. The system of claim 11, wherein the wirelesssignal repeater is configured to transmit the output wireless signal anda second output wireless signal in different network channels from eachother.
 18. A method of expanding a coverage of a wireless network, themethod comprising: transmitting, by an occupancy sensor responsive tomonitoring a space, occupancy detection information indicating whetherthe space is occupied; and receiving, by a communication circuit of alighting fixture, the occupancy detection information from the occupancysensor; transmitting, by the communication circuit, the occupancydetection information to a wireless signal repeater of the lightingfixture; receiving, by the wireless signal repeater of the lightingfixture, an input wireless signal and the occupancy detectioninformation; modifying, by the wireless signal repeater, a power levelof an output wireless signal based on the occupancy detectioninformation, wherein the output wireless signal corresponds to the inputpower signal; and transmitting, by the wireless signal repeater, themodified output wireless signal at the modified power level.
 19. Themethod of claim 18, further comprising scanning for a free channel or aless crowded channel, wherein the wireless signal repeater is configuredto use the free channel or the less crowded channel to transmit theoutput wireless signal.
 20. The method of claim 18, further comprisingcontrolling an illumination light provided by a light source of thelighting fixture based on the occupancy detection information.